Hypothesis testing for dependent samples using paired t test

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Reference no: EM1319493

A group of 20 sales associates agree to go through a week-long sales class to improve their productivity. The amount of their sales is computed for one month before and one month after the training course. Run the paired t-test to find out if:

Is there evidence to suggest that the training course helps out sales people?

Should we send the rest of our sales associates to the course?

Sales #	Before	After
1	$ 33,766.65	$ 37,483.57
2	$ 52,827.74	$ 37,871.17
3	$ 26,654.23	$ 22,036.40
4	$ 21,758.96	$ 28,712.85
5	$ 42,708.70	$ 33,083.67
6	$ 38,123.38	$ 25,527.58
7	$ 18,064.69	$ 25,912.90
8	$ 21,891.92	$ 25,658.53
9	$ 44,578.95	$ 33,012.29
10	$ 38,907.00	$ 51,140.65
11	$ 34,452.24	$ 26,601.97
12	$ 40,607.04	$ 41,688.33
13	$ 10,049.96	$ 48,257.45
14	$ 4,678.23	$ 5,017.87
15	$ 26,160.92	$ 24,297.28
16	$ 27,392.57	$ 39,360.24
17	$ 44,098.47	$ 57,434.46
18	$ 65,263.37	$ 52,551.86
19	$ 29,605.20	$ 24,895.86
20	$ 5,133.71	$ 10,617.06

Reference no: EM1319493

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